.container {
  width: 100%;
  height: 100%;
  border: 1px solid;
  position: relative;

}

.container-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(100%);
}

.btns {
  display: flex;
  margin-top: 12px;
  align-items: center;
  justify-content: flex-end;
  position: absolute;
  bottom: 40px;
  right: 20px;

  .btn {
    margin-right: 20px;
  }

}
